Love your idea @Holly Wadsworth-Hill. Reading through it I was reminded of the bulk barn shop concept in Canada and I realized they don't actually have soaps or liquid products and it should totally exists. The comment about having re-usable containers that can be used for those stations also makes sense. An additional thought that could make those containers more valuable could be to prepare kits of things that could go together. like a shower/bath kit, which has containers for soap/shampoo etc.